Question

I have functions in a ‘library’ file to be called from my ‘worker’ script.

Library File

function ShowMessage($AValue)
{
  $a = new-object -comobject wscript.shell
  $b = $a.popup( $AValue )
}

Worker File

. {c:\scratch\b.ps1}

ShowMessage "Hello"

Running the ‘worker’ script works fine when in the PowerShell IDE but when I right-click the worker file and choose ‘Run with PowerShell’ it cannot find the function ‘ShowMessage’. Both files are in the same folder. What might be happening?

Answer 1

In the worker file change to this:

. "c:\scratch\b.ps1"

ShowMessage "Hello"

As @RoiDanton mentioned below:

Attention when using relative pathing: Don’t forget to prepend a dot
before the path . “.\b.ps1”.

The first dot is an operator used to modify the scope and in that context it has nothing to do with paths. See Dot Source Notation.